body {
    background: #ecf0f0ef;
    /* 文字居中 */
}

* {
    padding: 0;
    list-style: none;
    text-decoration: none;
    margin: 0px 0px;
    /* 到边框的距离 */
}

a .menu a:hover {
    color: rgb(14, 194, 218);
}

.all {
    width: 100%;
    height: 1600px;
}

.menu {
    width: 100%;
    height: 80px;
    text-align: center;
    position: fixed;
    top: 0px;
    left: 0px;
    margin: 0 auto;
    z-index: 99999;
    opacity: 1;
    background-color: white;
}

.left {
    height: 80px;
    float: left;
    margin-left: 50px;
}

.left ul li {
    padding: 0px 20px;
    float: left;
    list-style: none;
}

.left ul li a {
    text-decoration: none;
    color: rgb(35, 37, 39);
    font-size: 25px;
    line-height: 80px;
    width: 140px;
    font-family: STXingkai;
}

.right {
    height: 80px;
    float: right;
    margin: 80px;
    display: flex;
    margin-top: 25px;
}

.right ul li {
    padding: 0px 15px;
    float: right;
    list-style: none;
}

.right a {
    text-decoration: none;
    color: rgb(35, 37, 39);
    font-size: 20px;
    width: 80px;
}

.right input {
    float: left;
    flex: 4;
    height: 30px;
    outline: none;
    border: 1px solid rgb(40, 40, 40);
    box-sizing: border-box;
    padding-left: 10px;
}

.right button {
    float: right;
    flex: 1;
    height: 30px;
    width: 35px;
    background-color: #282828;
    color: white;
    border-style: none;
    outline: none;
    cursor: pointer;
}

.right button i {
    font-style: normal;
}

.right button:hover {
    background-color: rgb(152, 231, 255);
}

#banner {
    margin-top: 80px;
    width: 100%;
    height: 400px;
    position: relative;
    overflow: hidden;
}

#banner .slide {
    height: 400px;
    width: 400%;
}

#banner .slide a {
    display: inline-block;
    height: 400px;
    width: 25%;
    float: left;
}

#banner .slide img {
    height: 400px;
    width: 100%;
}

.slick-dots {
    position: absolute;
    width: 75px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    left: 50%;
    bottom: 21px;
    transform: translateX(-50%);
}

.slick-dots li label {
    width: 10px;
    height: 10px;
    display: inline-block;
    background-color: #DAE6FF;
    border-radius: 5px;
}